Home / 747,756.87-1,031,865.44-408,159.51

Finding the Fourth Proportional to 747,756.87, 1,031,865.44 and 408,159.51

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Solution

The fourth proportional to 747,756.87, 1,031,865.44 and 408,159.51 is: 563,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,756.87 : 1,031,865.44 = 408,159.51 : x
  2. Step 2: Convert to fraction form
    747,756.87/1,031,865.44 = 408,159.51/x
  3. Step 3: Cross multiply
    747,756.87x = 1,031,865.44 × 408,159.51
  4. Step 4: Simplify right side
    747,756.87x = 421,165,692,376.33
  5. Step 5: Solve for x
    x = 421,165,692,376.33/747,756.87
  6. Step 6: Final answer
    x = 563,238.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.